Bftonzing-machine



' UNITED STATES ATENT FFICE@ y -I.- F. TAELEY,'OF SPRINGFIELD, MASSACHUSETTS.

e Specification forming part OfLetters Patent No. 41,029, dated December 22, 1863.

.T0 all whom, it may concern.-

lowing is a full, clear, and exact description of the same, reference being had tothe ac companying drawings.

It is the object of my invention to produce a macbinewhich shall apply the bronze, as above stated, as perfectly as it is now applied by hand, "Many methods have. been tried by myself and others, but heretofore, as far asV my. knowledge has extended, ythey have all failedgin.: some. important featureT thereby rendering them of little or no value; but a s machi'ne'embodying the principles herein described has been in successful operation for several months. The common method of appiying bronze by hand is with a pad of some soft substance hel-d in the 'hand and briskly A passed over the sheets in a manner only ac-` quired perfectly by long practice. These pads 4maybe made ofl fur, which I have found by experience to be the best substance.- After being bronzed the sheets are subjected; to a .brushing torel'nove the superiuous bronze.

In vmy machine I have endeavored to combine the mechanism in such'a manner as to imitate the operation of the human .muscles 'as nearly as possible. y

`Without further preliminaries I will proceed to describe the construction and operation of my invention. l l

In the drawings making a part of this specification, Figuregl is a Vertical longitudinal section of the machine.- Fig. 2gis a top view of the same with the'cover removed and Figf is a top view of bronze-receptacle attached tothe cover of machine. y

l A Ais the frame or box supporting and inclosing the machine.

B B are twoA rolls carrying an endless apron, 0,'for feeding the sheets to the mathine.

D isa bed-piece to support a portion of the apron. l

E is an adjustable feed-.roll operating in connection with the roll B. The roll E is Vcomposed of a central shaft and two short rolls, (t a', movable 'longitudinally on t-he shaft and held in place by the set-screws 12a-yb. F G are ytwo pads or brushes atiached to the three-armed lever H, which is lpivoted at c. I is a connecting-rod attached to the short arm v of 'lever H at @,'and formed'at its otherl Iend to' receive vthe eccentric K, from which 1t receives a reciprocatingr motion, which it communicates to the lever H, and thence to' pads F G.' The eccentric "K 'is attached'to" and receives motionfro'm the shaft L, which is connected to the driving pulley M by the belt N.' g l a: is a small roll between the pads to 'aid in holding the paper in der the pads. j e

0.0 are two small feedrolls, which receive the sheet from the apron and force' it between the two'rotary brushes or dusters P P', from which'it is received'by the rolls It R and delivered through the openingiezin the boxvA i to any suitable receiver.

A S is a receptacle for bronze, attached ltothe I' top of the box A by the 'springlsftand f.'

`g isan arm extending from one end t' is a tube iii the box S having a central hole, j, through its axis, andiuterseeted near serving as a gate to regulate the flow of the bronze, as when forced'entirely down it closes the holes l l. llhis gate may be held in place by friction, as here shown, or by a screw or other convenient device. Y

T is another receptacle for bronze attached to the top of 'padF, and is provided with a gate similar tot l m in S. Probably both of these receptacles would not be necessary at the saine time, but either the one or the other can be used at pleasure.

U is a drawer forreceiving the bronze that is removed from the sheets and apron.

V is a rotary brush for cleaning the apron. 'W is a partition to prevent the bronze from being thrown onto the. sheets from the cleaning-brushes P P. Q represents the sheet of paper passing between the dustingbrushes I P. The feedplace while passing unof `S and resting on theteeth ofthe gear lL, which operates as a ratchet-wheel to give the box S a slight shaking t'o facilitatethe delivery of tbe'bronze ,v f

vthe rolls lt R, as before stated. As'the apron t roller E is made with the two adjustable rolls l a a, so that they may be set to run on the margin ot' the printed sheet, as,if they run over and onto the. printed lines, they would become covered with inkand soil the sheets. Y is a at tube for conducting the bronze to the sheet. v

Now, the operation is as follows: The sheet of paper, having been printed with a suitable size or ink, is taken before the ink dries and fed t) this machine. by introducing one edge between roll E and apron C. `By these itis carried under the reciprocatingv pads E G.

' `he bronze, being,r placed in one ot' the holders above described, is delivered to the paper.

eitherjust in front ofthe pad E or through said pad. Now, as the padsV have a reciproeating; motion in lines running in one direc`.

tion,'ald the paper has' a continuous motion,r

in a direction at right anglesto these lines, the bronze is very evenly distributed over the sheet, and without these motions in two different directions, or something producing `the salue results, the effect can never be produced.

The motion ofthe pads should be very much fasterthanthemotionoftheaprou. Now, as

the sheet passes out from under the pads and isy leaving the apron, it is received by the rolls 0 O and -forcedbetween the `rotary brushes or dusters P Pf, runningin the direction indi-v cated by the arrows. It willbe seen thatfl' depend on the strength of the paper to snpport it in passingfrom the ,feedrolls,. t) J to and through between the brushes P P,there ilyenabling me todust both sides -of the sheet, which is Very necessary, as more or less bronze l will get onto the apron, -a-nd, consequently,' onto the under side of the sheet. At'ter'passing from the dusters the sheet is received by4 'i G returns under the rolls B B itis brushed g by the rotary duster V. so that itis clean to 1 receive a new sheet. The bed-plate -D under l the apron is necessaryto form a. support to or rubbing-cylinders (either independently orV in combination withother mechanism) for ap plying the bronze to the sheet but `What I do claim as new, and desire 'tesecure by Letters Patent, Ais'- y l 1. In combination with suitable feeding mechanism, the use of one or more reeiprocating or vibrating pads or brushes F G. for the purposes andin the manner substantially as herein set'forth.

l 2. 'lhejbronze-receptaule S, provided with the gate ij, or its mechanical equivalent, when used in combination with the box A and feed- 'ing mechanism ot' amachine for bronzing printed sheets of paper orvother similar sub, stances. y

3. rlhe bed-piece in combination'withvthev endless apron U-and one or more vibrating -padsF Gr. l e Y l I 4.' The cleaningbrushes P P', arranged as4 herein described, whereby yboth' sidesot' the sheet are -cleaned at the same time, in 4@combination with the rolls O O' and 1t ltgvor their" equivalents, when'used for the purpose substantinlly as described'.

5. The adjustable feedroll E, in combination with theroll B atd endless apron C, or `its equivalent, ,whereby the rolls a b c may bev so adjusted as torun on themarginot' a printed v sheet, for the purpose herein described.

` J. F. {BAULE-Y.` Witnesses I 7 MILTON BRADLEY, J. B. GARBINER. 

